Methods inherited from class java.lang.Object

Method Detail

map

Override with your map implementation. This overload is given an array
of local input Chunks, for Frames with arbitrary column
numbers. All map variants are called, but only one is expected to be
overridden.

reduce

Override to combine results from 'mrt' into 'this' MRTask. Both 'this'
and 'mrt' are guaranteed to either have map() run on them, or be the
results of a prior reduce(). Reduce is optional if, e.g., the result is
some output vector.